From: Valentin Schneider <vschneid@redhat.com>
To: linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-snps-arc@lists.infradead.org,
linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org,
linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org,
loongarch@lists.linux.dev, linux-mips@vger.kernel.org,
openrisc@lists.librecores.org, linux-parisc@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org,
linux-s390@vger.kernel.org, linux-sh@vger.kernel.org,
sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org,
x86@kernel.org
Cc: "Paul E. McKenney" <paulmck@kernel.org>,
Steven Rostedt <rostedt@goodmis.org>,
Peter Zijlstra <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Juri Lelli <juri.lelli@redhat.com>,
Daniel Bristot de Oliveira <bristot@redhat.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
Frederic Weisbecker <frederic@kernel.org>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>, Marc Zyngier <maz@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Russell King <linux@armlinux.org.uk>,
Nicholas Piggin <npiggin@gmail.com>, Guo Ren <guoren@kernel.org>,
"David S. Miller" <davem@davemloft.net>
Subject: [RFC PATCH v2 4/8] smp: Trace IPIs sent via arch_send_call_function_ipi_mask()
Date: Wed, 2 Nov 2022 18:33:32 +0000 [thread overview]
Message-ID: <20221102183336.3120536-3-vschneid@redhat.com> (raw)
In-Reply-To: <20221102182949.3119584-1-vschneid@redhat.com>
This simply wraps around the arch function and prepends it with a
tracepoint, similar to send_call_function_single_ipi().
Signed-off-by: Valentin Schneider <vschneid@redhat.com>
---
kernel/smp.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/kernel/smp.c b/kernel/smp.c
index e2ca1e2f31274..c4d561cf50d45 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -160,6 +160,13 @@ void __init call_function_init(void)
smpcfd_prepare_cpu(smp_processor_id());
}
+static inline void
+send_call_function_ipi_mask(const struct cpumask *mask)
+{
+ trace_ipi_send_cpumask(mask, _RET_IP_, func);
+ arch_send_call_function_ipi_mask(mask);
+}
+
#ifdef CONFIG_CSD_LOCK_WAIT_DEBUG
static DEFINE_STATIC_KEY_FALSE(csdlock_debug_enabled);
@@ -970,7 +977,7 @@ static void smp_call_function_many_cond(const struct cpumask *mask,
if (nr_cpus == 1)
send_call_function_single_ipi(last_cpu);
else if (likely(nr_cpus > 1))
- arch_send_call_function_ipi_mask(cfd->cpumask_ipi);
+ send_call_function_ipi_mask(cfd->cpumask_ipi);
cfd_seq_store(this_cpu_ptr(&cfd_seq_local)->pinged, this_cpu, CFD_SEQ_NOCPU, CFD_SEQ_PINGED);
}
--
2.31.1
next prev parent reply other threads:[~2022-11-02 18:36 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-02 18:29 [RFC PATCH v2 0/8] Generic IPI sending tracepoint Valentin Schneider
2022-11-02 18:29 ` [RFC PATCH v2 1/8] DO-NOT-MERGE: tracing: Add __cpumask to denote a trace event field that is a cpumask_t Valentin Schneider
2022-11-02 18:33 ` [RFC PATCH v2 2/8] trace: Add trace_ipi_send_cpumask() Valentin Schneider
2022-11-02 18:33 ` [RFC PATCH v2 3/8] sched, smp: Trace IPIs sent via send_call_function_single_ipi() Valentin Schneider
2022-11-02 18:33 ` Valentin Schneider [this message]
2022-11-17 9:08 ` [RFC PATCH v2 4/8] smp: Trace IPIs sent via arch_send_call_function_ipi_mask() Peter Zijlstra
2022-11-17 14:23 ` Valentin Schneider
2022-11-02 18:33 ` [RFC PATCH v2 5/8] irq_work: Trace self-IPIs sent via arch_irq_work_raise() Valentin Schneider
2022-11-17 9:10 ` Peter Zijlstra
2022-11-02 18:33 ` [RFC PATCH v2 6/8] treewide: Trace IPIs sent via smp_send_reschedule() Valentin Schneider
2022-11-17 9:12 ` Peter Zijlstra
2022-11-17 14:24 ` Valentin Schneider
2022-11-02 18:33 ` [RFC PATCH v2 7/8] smp: reword smp call IPI comment Valentin Schneider
2022-11-02 18:33 ` [RFC PATCH v2 8/8] sched, smp: Trace smp callback causing an IPI Valentin Schneider
2022-11-17 14:12 ` Peter Zijlstra
2022-11-17 14:45 ` Valentin Schneider
2022-11-18 9:12 ` Peter Zijlstra
2022-11-18 16:42 ` Daniel Bristot de Oliveira
2022-11-14 17:27 ` [RFC PATCH v2 0/8] Generic IPI sending tracepoint Steven Rostedt
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